a person in the record
A. H. Vellekoop
Doctoral advisors on Wikidata: Alexander Rinnooy Kan and C. Guus E. Boender.
Advisors on Wikidata
Wikidata's own statements of who supervised whom, kept apart from the record's theses and never counted with them.
Wikidata run graph-wikidata-20261008T220003Z